checking for hidden files and directories ... NOTE
Found the following hidden files and directories:
data/.Rhistory
These were most likely included in error. See section ‘Package
structure’ in the ‘Writing R Extensions’ manual.

checking for portable file names ... OK

checking for sufficient/correct file permissions ... OK

checking serialization versions ... OK

checking whether package ‘UScensus2010’ can be installed ... OK

checking package directory ... OK

checking DESCRIPTION meta-information ... OK

checking top-level files ... OK

checking for left-over files ... OK

checking index information ... OK

checking package subdirectories ... OK

checking R files for non-ASCII characters ... OK

checking R files for syntax errors ... OK

checking whether the package can be loaded ... OK

checking whether the package can be loaded with stated dependencies ... OK

checking whether the package can be unloaded cleanly ... OK

checking whether the namespace can be loaded with stated dependencies ... OK

checking whether the namespace can be unloaded cleanly ... OK

checking loading without being on the library search path ... OK

checking use of S3 registration ... OK

checking dependencies in R code ... NOTE
'library' or 'require' call to ‘rgdal’ in package code.
Please use :: or requireNamespace() instead.
See section 'Suggested packages' in the 'Writing R Extensions' manual.
Packages in Depends field not imported from:
‘foreign’ ‘methods’
These packages need to be imported from (in the NAMESPACE file)
for when this namespace is loaded but not attached.